The past is really almost as much a work of the imagination as the future. -- Jessamyn West
Politics !!Hopefully it will be bypassed, but left in place, when the double track arrives from Greensborough.I was under the impression that the lack of projected population growth along the Diamond Creek wedge, meant that double track beyond Greensborough was not on the cards until at least 2030-2040.
I think duplication Greensborough-Eltham is inevitable eventually, but who knows when?Presumably when the population increase along the Diamond Creek wedge warrants an increased service.
The duplication comment was about the Greensborough-Eltham section, not Eltham to Diamond Creek. But bear in mind that in those outlying stations it's not just the local population that uses them; you would also get commuters from St Andrews, Cottles Bridge, Kinglake etc., even from DC-Wattle Glen-Hurstbridge to Eltham because of the better service.I think duplication Greensborough-Eltham is inevitable eventually, but who knows when?Presumably when the population increase along the Diamond Creek wedge warrants an increased service.
The problem is that even if you maxxed out the population capacity of the DC wedge.... I suspect the population level still wouldn't warrant duplication. Diamond Creek had a population of about 9,000 in 1996. About 12,000 in 2016. It would need a population of 90,000 to consider duplication. There isn't enough free land in DC to accommodate that kind of population.
As for the Eltham trestle, I'd guess something along the lines of the Chandler Rd bridge upgrade would be done i.e. the old bridge converted to a foot/bike path, new bridge carrying two tracks runs along side.
There's plenty of land at Diamond Creek, just bring a few chainsaws, some B-double logging trucks and some Chinese property moguls.
As for needing 90000 in a suburb just to get two tracks, I call BS. Diamond Creek is almost identical to Box Hill in terms of population according to the 2016 Census, it isn't like Hurstbridge and Wattle Glen where there is absolutely nothing. You would also be hard pressed to find any Melbourne suburb with close to 90000 people, Reservoir is pushing it with 50000.
30 random suburbs with comparable population to Diamond Creek:
Diamond Creek 11733
Vermont South 11678
Box Hill 11395